PRINCIPLES OF ELECTROMAGNETIC THEORY is an essential component of a Physics curriculum. This book is a comprehensive text which introduces an undergraduate student to the basic principles of electromagnetic theory. Though several excellent textbooks on electromagnetic theory are available, the author has tried to make this book lucid for better comprehension. The contents of the book have been arranged in a systematic manner. It covers all the major topics of electromagnetic theory, viz, propagation of electromagnetic waves through isotropic and anisotropic medium, their reflection and transmission at an interface, transmission lines and waveguides. Wherever necessary, a brief recapitulation of the fundamental knowledge has been provided. Each chapter has a collection of worked out numerical and objective questions. This book is a complete package in itself as it sufficiently covers the syllabus of various institutions which offer a course on electromagnetic theory. It also prepares the student for various competitive exams by providing a conceptual insight into the topics covered.